TY  - RPRT
TI  - Aeromagnetic map of parts of the Denver, Greeley, and Pueblo 1 x 2 degree quadrangles, Colorado
AU  - F. E. Riggle
AU  - Isidore Zietz
PY  - 1994
DO  - 10.3133/ofr94164
UR  - https://pubs.usgs.gov/publication/ofr94164
ID  - ofr94164
ER  -